sqlite3, test coverage improvements, auto auth

app/models/authentication.rb

@@ -1,3 +1,4 @@
 class Authentication < ActiveRecord::Base
-  belongs_to :user
+  belongs_to :person
+  validates :uid, presence: true, uniqueness: { scope: :provider }
 end

app/models/person.rb

@@ -11,7 +11,7 @@ class Person < ActiveRecord::Base
   validates :phone, presence: true
 
   scope :with_name, lambda { |name|
-    where("concat(first_name, ' ', last_name) RLIKE ?", name)
+    where("first_name || ' ' || last_name LIKE ?", "%#{name}%")
   }
 
   scope :just_parents, lambda {
@@ -34,6 +34,10 @@ class Person < ActiveRecord::Base
     id
   end
 
+  def active?
+    activation_state == "active"
+  end
+
   private
 
     ## SorceryCore expects the model to hold a crypted_password field